// constructor3 DIS
// multiple constructors ("constructor overloading")

class Test3 {

    int k;

    // constr (1)
    Test3() { get_k(); }    

    // constr (2)
    Test3(int k) { this.k = k; }

    void get_k() { 
	TokenReader in = new TokenReader(System.in);
	System.out.print("Enter k: ");
	this.k=in.readInt();
    }
}

public class constr3 {
    public static void main(String[] args) {

	Test3 a = new Test3();   // call construc (1)
	System.out.println(a.k);

	Test3 b = new Test3(3);  // call construc (2)
	System.out.println(b.k);

    }

}